https://www.wvf-valve.com/ball-valve/full-bore-ball-valve/ductile-iron-ball-valve.html
Body made of ductile iron EN-GJS 400-15
Epoxy coating according to EN 14091
Seat material made of PTFE, F46, EFP
Ductile Iron Ball Valve has advantages as following:
1. Quick to open and close
2. Available in multi-port designs
3. Suitable for both clean and silty flow
4. They provide bubble-tight flow shut off
5. The variety of ball valve designs and materials provides selection flexibility
6. Capable of reliable service in both high-pressure and high-temperature applications